/*
 * Copyright (c) 2020 Trail of Bits, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#pragma once

#include <cstdint>
#include <string>

#ifndef REMILL_OS
#  if defined(__APPLE__)
#    define REMILL_ON_MACOS 1
#    define REMILL_ON_LINUX 0
#    define REMILL_ON_WINDOWS 0
#    define REMILL_ON_SOLARIS 0
#    define REMILL_OS "macos"
#  elif defined(__linux__)
#    define REMILL_ON_MACOS 0
#    define REMILL_ON_LINUX 1
#    define REMILL_ON_WINDOWS 0
#    define REMILL_ON_SOLARIS 0
#    define REMILL_OS "linux"
#  elif defined(WIN32) || defined(_WIN32) || defined(_WIN64) || \
      defined(_MSC_VER)
#    define REMILL_ON_MACOS 0
#    define REMILL_ON_LINUX 0
#    define REMILL_ON_WINDOWS 1
#    define REMILL_ON_SOLARIS 0
#    define REMILL_OS "windows"
#  elif defined(__sun) && defined(__SRV4)
#    define REMILL_ON_MACOS 0
#    define REMILL_ON_LINUX 0
#    define REMILL_ON_WINDOWS 0
#    define REMILL_ON_SOLARIS 1
#    define REMILL_OS "solaris"
#  else
#    define REMILL_ON_MACOS 0
#    define REMILL_ON_LINUX 0
#    define REMILL_ON_WINDOWS 0
#    define REMILL_ON_SOLARIS 0
#    error "Cannot infer current OS."
#  endif
#endif

namespace llvm {
class Triple;
}  // namespace llvm
namespace remill {

enum OSName : std::uint32_t {
  kOSInvalid,
  kOSmacOS,
  kOSLinux,
  kOSWindows,
  kOSSolaris,
};

OSName GetOSName(const llvm::Triple &triple);

OSName GetOSName(std::string_view name_);

std::string_view GetOSName(OSName name);

}  // namespace remill
